And that may be how he connected with his victims.

可能因此认识了被害人
He's definitely had medical training.

他肯定进行过医疗培训
His German victim was a student,

德国那个被害人是个学生
and the unsub may also be in those circles.

嫌犯可能也是那个圈子的
We need to check currently enrolled medical students

我们得查查目前国内外医学院的在校生
as well as recent dropouts, both here and abroad.

包括最近退学的
He's clearly bright and capable.

他非常聪明能干
His torture suggests he's experimenting,

他对被害人的折磨是某种实验
which could mean he's bored.

说明他百无聊赖
But with his intelligence comes a dark side.

但他不仅聪明心理还很阴暗
And that's where his psychology and genetics come into play.

而这时他的心理状态和遗传基因开始起作用了
How do you know those characteristics?

你们怎么知道这些特征的